Many products don’t change they just need to be sent to the buyer. Fiverr should have an option to upload that product for that gig one time and allow buyers to instantly download it so sellers don’t have to keep uploading it every time they have a sale.

I would be okay with that AS LONG AS, evergreen products were “marked” in the gig. What I don’t like is people who seem to be selling a service “I will show you how…” and then it’s a “how to book” / ebook.